This study aimed to determine the effect of teacher's welfare committee on the spirit of senior high school teachers in Kota Komba sub-district, East Manggarai Regency, East Nusa Tenggara. The type of research used was quantitative research which emphasized the analysis of numerical data (numbers) obtained by statistical methods with the independent variable being teacher welfare and the dependent variable was the spirit of teaching. The sample was 25 high school teachers spread across 8  schools in Komba by filling out questionnaires completely. Data collection techniques used was Field Research. Data were analyzed by using IMB SPSS statistick 17.0 software, with r table obtained by correlation value "r" moment products with degrees of freedom (df) = n-2 and significant level was  (α) = 0.05. The results of the study found r-value was 0.456, and  r-table was 0.413 at a significant level of 5% (0.05). Thus r-value> r-table, 0.456> 0.413. In conclusion, there was a significant influence between the level of teacher welfare of the committee towards the spirit of teaching Keywords: Teacher Welfare, The Spirit of Teaching